Washington (CNN) The Senate Intelligence Committee has subpoenaed Donald Trump Jr. for him to return and testify again, and the committee is now at a standoff with President Donald Trump's eldest son, according to sources familiar with the matter. The subpoena from the Republican-led Senate Intelligence panel is believed to be the first issued to one of Trump's family members. Discussions for Trump Jr.'s testimony began several weeks ago before special counsel Robert Mueller's report was released, the sources say. Trump Jr.'s team resisted giving testimony, in part, because the findings of the Mueller report were still not known. The subpoena for Trump Jr.'s testimony marks an escalation of the Senate Intelligence Committee's probe into Russian election interreference.

Source: CNN May 08, 2019 20:45 UTC